I'm taking my 620 to Music Zoo in Roslyn. NY for a repair. Th instrument puts out a loud AC buzz as soon as it's plugged in. I've checked the harness and visually everything looks okay. Does anyone know what could be causing this kind of noise?

Rickenbrother

Post subject: Re: Loud noise

Posted: Mon Jun 25, 2012 5:44 am

Joined: Tue Aug 09, 2005 1:00 pmPosts: 2592Location: The Rickenroom

Could be a bad ground. Have you tried other guitar cables or amps to be sure it's not your 620? If it's just a bad ground, The Music Zoo should have it fixed quickly with no problem.

_________________Throw that piece of firewood where it belongs and get yourself a Rickenbacker!

It also could be the amp, the house wiring, or even the lighting in the room you're in (seriously). Change every variable to isolate the problem, including taking the guitar and a few different amps to another house to plug in.

davidj4

Post subject: Re: Loud noise

Posted: Tue Jul 03, 2012 3:23 am

Joined: Fri May 14, 2010 6:03 amPosts: 73Location: lynbrook, ny

All possible variables have been checked. The instrument has been with a tech for days and he has checked every gound and connection and cannot find the cause. I'm at my wits end here.

Rickenbrother

Post subject: Re: Loud noise

Posted: Tue Jul 03, 2012 5:41 am

Joined: Tue Aug 09, 2005 1:00 pmPosts: 2592Location: The Rickenroom

Did he check the output jack? That's sometimes hard to tell if if it's bad, by just looking at it.

_________________Throw that piece of firewood where it belongs and get yourself a Rickenbacker!

cassius987

Post subject: Re: Loud noise

Posted: Tue Jul 03, 2012 6:12 am

Joined: Mon Mar 05, 2007 12:33 amPosts: 3403Location: Denver

Really, this kind of problem is easily fixed by anyone who just takes the time to check each joint with a multimeter. I don't know why it always ends up the tech has no idea what to do.

Rickenbrother

Post subject: Re: Loud noise

Posted: Tue Jul 03, 2012 11:59 am

Joined: Tue Aug 09, 2005 1:00 pmPosts: 2592Location: The Rickenroom

cassius987 wrote:

Really, this kind of problem is easily fixed by anyone who just takes the time to check each joint with a multimeter.

One would think that's something the guitar repairman would do in this case.

_________________Throw that piece of firewood where it belongs and get yourself a Rickenbacker!

cassius987

Post subject: Re: Loud noise

Posted: Tue Jul 03, 2012 12:25 pm

Joined: Mon Mar 05, 2007 12:33 amPosts: 3403Location: Denver

Joey, it never ceases to amaze me--even guitar techs and accredited luthiers that I hold in high esteem often treat passive wiring like a black box not to be touched. I find the wood work way scarier!

OP, good luck.

Rickenbrother

Post subject: Re: Loud noise

Posted: Tue Jul 03, 2012 3:48 pm

Joined: Tue Aug 09, 2005 1:00 pmPosts: 2592Location: The Rickenroom

Joshua, I know what you mean. Some of the repairs or modifications I've some so called guitar repairmen do, left be bewildered. From a long time ago, I'd realized that I'm proabably better off knowing how to deal with set ups and at least minor mods and repairs myself.

_________________Throw that piece of firewood where it belongs and get yourself a Rickenbacker!

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